11031426 has 48 divisors (see below), whose sum is σ = 28267200. Its totient is φ = 3042144.

The previous prime is 11031413. The next prime is 11031437. The reversal of 11031426 is 62413011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11031399 and 11031408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2145 + ... + 5163.

It is an arithmetic number, because the mean of its divisors is an integer number (588900).

Almost surely, 2^11031426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11031426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14133600).

11031426 is an abundant number, since it is smaller than the sum of its proper divisors (17235774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11031426 is a wasteful number, since it uses less digits than its factorization.

11031426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063 (or 3060 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 11031426 is about 3321.3590591804. The cubic root of 11031426 is about 222.6095979859.

Adding to 11031426 its reverse (62413011), we get a palindrome (73444437).

The spelling of 11031426 in words is "eleven million, thirty-one thousand, four hundred twenty-six".